The Japanese Orthopaedic Association (JOA) began work on developing an arthroplasty registry in 2003. Pilot registration in the Japan arthroplasty register, Japan's first national orthopaedic registry, started in 2006. The JOA's response to the national push for registry development was to embark in 2017 on the development of a national registry for the comprehensive registration of orthopaedic surgeries, undertaken by the Case Registry Committee. Pilot registration of cases from the institutions with which the Case Registry Committee members were affiliated was conducted from 2019, when the online registration system was ready, and after system malfunctions and other errors had been corrected, the JOANR was fully launched on April 1, 2020. The JOANR database architecture has two levels, with the first dealing with basic items and the second the detailed items used in the specialist areas of partner medical associations, including the Japan Arthroplasty Register (JAR, which is the forerunner of the JOANR). JOANR registration is a requirement for accreditation as a core institution or partner institution under the board certification system. Materials and Methods JOANR/JAR are referred to https://www.joanr.org . A part of the detail data is not open to the public. Results JOANR/JAR provides real-world evidence concerning orthopaedic surgery in Japan. Clinical outcomes of robotics in total hip arthroplasty are preferable. Discussion This marks the birth of the first comprehensive largescale orthopaedic surgery database in Japan, which registered more than 1,000,000 cases. The accumulation of real-world evidence and international collaboration will contribute to the development of both medical research and government policy.
Haruhiko Akiyama (Thu,) studied this question.